We use a beam size of 12 for beam search, with probabilities normalized by sentence length.
We use a bilingual dictionary based on fast-align [1]}.
For our baseline, this serves as back-off dictionary for rare words.
We also use the dictionary to speed up translation for all experiments, only performing the softmax over a filtered list of candidate translations (like jean15, we use \(K=30000\) ; \(K^{\prime }=10\) ).
